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What problems will be encountered when building an one-to-one dating app source implementation platform? in view of this problem, this article introduces the corresponding analysis and solutions in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible method.

In the process of building a platform using one-to-one dating app source code, we often encounter a lot of pits. It can be summarized into two aspects: the difference of equipment and the technical test brought by the network environment. The push end can detect the network status or dynamically switch the bit rate to ensure the smooth push when the network is switched. Secondly, the logic of encoding, push and packet can also be fine-tuned, and you can try to selectively drop frames (such as losing video reference frames first), so that the data content to be transmitted can be reduced. at the same time, it does not affect the live video quality and audio-visual fluency.

1. Delay Optimization principle of one-to-one Live Broadcasting Technology

(1) the indexes that affect the video definition: frame rate, bit rate, resolution, quantization parameters (compression ratio).

(2) the indexes that affect the video fluency: bit rate and frame rate.

Other metrics: LVB is an industry that consumes a lot of traffic and performance. Power consumption and heating are counted as one of the other indicators. In most cases, heating is proportional to power consumption, which can be temporarily replaced by power consumption.

two。 Live stutter and first frame optimization

Network instability may occur in most LVB app, which may be caused by insufficient CDN nodes or various problems with the VJ itself and the code. Usually, the direct cause of stutter is that the playback stops because the local buffer is empty, but from the whole process from the VJ end to the viewer end, the network condition and server performance may aggravate the problem. The original image data in the video will be compressed in H.264 coding format, and the audio sampling data will be compressed in AAC coding format.

3. Optimization of server side

In the LVB server, you can set a cache to store GOP client playback. When the LVB server caches the current GOP sequence, and then the player requests data, the CDN will return to the client from the I frame, thus ensuring that the client can quickly obtain the I frame for display. Of course, because the previous video information is cached, when the audio data reaches the player, the player will fast forward the video for audio and video synchronization. (the impact of this situation is small.)

4. Optimization of the player end

DNS resolution means the process of resolving a domain name from xxx.com to ip. Modify the player logic. Based on the secondary development of FFmpeg, FFmpeg can only start playback by getting the complete information of the video. If you only get part of the information and start broadcasting, then you need to modify the code.

5. Video optimization

If you only optimize the opening delay, you can insert more keyframes between video frames, so that the client can decode the video stream as soon as it receives it. However, if the cumulative delay in the transmission process needs to be optimized, the use of key frames will be reduced as much as possible. in the case of ensuring the same video quality, the more I frames, the higher the bit rate, the more network bandwidth required for transmission. What does that mean? Means that the cumulative delay is likely to be greater. Of course, this optimization effect may not be obvious in systems with second latency, but it will be obvious in systems with 100ms or even lower latency. At this point, try to use ACC-LC Codec to encode audio. Although HE-ACC and HE-ACC 2 have high coding efficiency, the encoding time is relatively longer, and the transmission delay caused by producing a larger volume of audio has less impact on the transmission of video streams.

This is the answer to the questions that will be encountered when building the one-to-one dating app source implementation platform. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

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